GHRP-2
Tested in peopleIt has been tested in people, but it is not an approved medicine. The studies are usually small.
Also called Pralmorelin / KP-102 / Growth Hormone Releasing Peptide 2
Triggers a burst of growth hormone. Approved in Japan as a diagnostic test, not as a treatment.
Can a doctor prescribe this?
No. It sits on a restricted list, so pharmacies are not allowed to make it.
The FDA has not approved this as a medicine.
The FDA has kept this in its restricted category. It was not part of the July 2026 review.
Official status: Category 2 – restricted from compounding. Checked 2026-04-15.
Lab suppliers we list: 7
Doses used in research
Taken word for word from the studies and trials listed on this page. This is not a recommendation and not a dose for anyone to take.
In animal studies
These are doses given to animals, usually per kilogram of body weight. They do not convert directly to a human dose.
See source wording
mice · another route
Ghrelin receptor agonist, GHRP-2, produces antinociceptive effects at the supraspinal level via the opioid receptor in mice.Peptides · 2014
“Intracerebroventricular (i.c.v.) administration of GHRP-2 (0.1, 0.3, 1, 3 and 10 nmol/L) produced a concentration- and time-related antinociceptive effect.”
25.1 ng
mice ·
Benchmark for Setting ACTH Cell Dosage in Clinical Regenerative Medicine for Post-Operative Hypopituitarism.Diseases (Basel, Switzerland) · 2025
“Results The average ACTH peak value after CRH stimulation tests was 97.2 pg/mL, and the average GH peak value after GHRP-2 stimulation tests was 25.1 ng/mL.”
- Assessment of anterior pituitary reserve capacity based on growth hormone response to growth hormone-releasing peptide-2 test in the elderly.
Study in people
Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society · 2023
- Ghrelin receptor agonist, GHRP-2, produces antinociceptive effects at the supraspinal level via the opioid receptor in mice.
Animal study, rats or mice
Peptides · 2014
- GHRP-2 attenuates burn-induced dysfunctions in rodents.
Animal study, rats or mice
Advances in experimental medicine and biology · 2009
- ACTH releasing activity of KP-102 (GHRP-2) in rats is mediated mainly by release of CRF.
Animal study, rats or mice
Naunyn-Schmiedeberg's archives of pharmacology · 2005
- Benchmark for Setting ACTH Cell Dosage in Clinical Regenerative Medicine for Post-Operative Hypopituitarism.
Lab dish study
Diseases (Basel, Switzerland) · 2025
- Growth Hormone-Releasing Peptide 2 May Be Associated With Decreased M1 Macrophage Production and Increased Histologic and Biomechanical Tendon-Bone Healing Properties in a Rat Rotator Cuff Tear Model.
Lab dish study
Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association · 2025
- Pharmacological characteristics of KP-102 (GHRP-2), a potent growth hormone-releasing peptide.
Lab dish study
Arzneimittel-Forschung · 2004
- One Case of Sudden Isolated Adrenocorticotropic Hormone (ACTH) Deficiency Diagnosed Based on Repeated Hypoglycemic Attacks.
Cureus · 2025
- Association between overweight and growth hormone secretion in patients with non-functioning pituitary tumors.
PloS one · 2022
- On the road of dried blood spot sampling for antidoping tests: Detection of GHRP-2 abuse.
Drug testing and analysis · 2021
- Identification of a novel growth hormone releasing peptide (a glycine analogue of GHRP-2) in a seized injection vial.
Drug testing and analysis · 2019
- Laparoscopic Sleeve Gastrectomy Resolves Low GHRP-2-Stimulated Growth Hormone Levels in Obese Patients.
Obesity surgery · 2017
- Effects of GHRP-2 and Cysteamine Administration on Growth Performance, Somatotropic Axis Hormone and Muscle Protein Deposition in Yaks (Bos grunniens) with Growth Retardation.
PloS one · 2016
- Determination of growth hormone releasing peptides metabolites in human urine after nasal administration of GHRP-1, GHRP-2, GHRP-6, Hexarelin, and Ipamorelin.
Drug testing and analysis · 2015
- Detection of GHRP-2 and GHRP-6 in urine samples from athletes.
Drug testing and analysis · 2015
- Identification and quantification of the doping agent GHRP-2 in seized unlabelled vials by NMR and MS: a case-report.
Drug testing and analysis · 2014
- The arginine and GHRP-2 tests as alternatives to the insulin tolerance test for the diagnosis of adult GH deficiency in Japanese patients: a comparison.
Endocrine journal · 2013
- Determination of growth hormone secretagogue pralmorelin (GHRP-2) and its metabolite in human urine by liquid chromatography/electrospray ionization tandem mass spectrometry.
Rapid communications in mass spectrometry : RCM · 2010
- Concordant and discordant adrenocorticotropin (ACTH) responses induced by growth hormone-releasing peptide-2 (GHRP-2), corticotropin-releasing hormone (CRH) and insulin-induced hypoglycemia in patients with hypothalamopituitary disorders: evidence for direct ACTH releasing activity of GHRP-2.
Endocrine journal · 2010
- Identification of the growth-hormone-releasing peptide-2 (GHRP-2) in a nutritional supplement.
Drug testing and analysis · 2010
- Is there an undiscovered neurocircuit for regulating GH secretion? -Pitfalls of GHRP-2 and ITT as GH provocative tests-.
Endocrine journal · 2010
- General pharmacology of KP-102 (GHRP-2), a potent growth hormone-releasing peptide.
Arzneimittel-Forschung · 2004
- The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration.
Review of earlier work
Frontiers in endocrinology · 2026